CN215637894U

CN215637894U - Air conditioner indoor unit air duct structure and air conditioner indoor unit

Info

Publication number: CN215637894U
Application number: CN202120583621.2U
Authority: CN
Inventors: 黄燚; 陈观炎; 颜晓浩; 庄华虎; 邓妃恒
Original assignee: Panasonic Appliances Air Conditioning Guangzhou Co Ltd
Current assignee: Panasonic Appliances Air Conditioning Guangzhou Co Ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2022-01-25
Anticipated expiration: 2031-03-22

Abstract

The utility model relates to an air conditioner indoor unit air duct structure and an air conditioner indoor unit, wherein the air conditioner indoor unit air duct structure comprises two air duct assemblies; each air channel assembly comprises an air channel frame, a blowing grid and a fan; the air duct frame comprises an air duct wall, the air duct wall and the blowing-out grid are enclosed to form an air duct cavity which extends along the height direction of the indoor unit and is communicated along the front-back direction of the indoor unit, and the fan is rotationally fixed in the air duct cavity; the wind channel wall includes air inlet section and air-out section, two be provided with ventilation channel between the wind channel wall, ventilation channel one end run through in the air inlet section, and with wind channel chamber intercommunication, the other end and external intercommunication utilize the produced atmospheric pressure difference of negative pressure that the fan rotated the production can follow from the external world ventilation channel to external hot-air is introduced to the wind channel intracavity, improves the temperature of wind channel wall outside surface to above dew point temperature, reduces the dewfall.

Description

Air conditioner indoor unit air duct structure and air conditioner indoor unit

Technical Field

The utility model relates to the technical field of air conditioners, in particular to an air conditioner indoor unit air duct structure and an air conditioner indoor unit.

Background

With the development of air conditioning technology, people have higher requirements on air conditioners, such as air supply comfort and appearance. Generally, an air conditioner has a single air outlet, and cannot meet the requirements of various air supply modes.

Referring to fig. 1-3, fig. 1 is a schematic cross-sectional view of a partial structure of an indoor unit of a dual-duct air conditioner in the prior art, fig. 2 is a front view of a partial structure of an indoor unit of a dual-duct air conditioner in the prior art, and fig. 3 is a schematic explosion view of a partial structure of an indoor unit of a dual-duct air conditioner in the prior art, as shown in the figure, an air conditioner with dual ducts or even multiple ducts is designed in the prior art, the multiple ducts are transversely separated, and a support frame 10, a left duct 20, a right duct 20, and a left blowing grid 30 are spliced and laminated to form a complete duct to supply air; form one between two wind channels and be used for placing the cavity of wading electric control structure, as shown in the figure, current structure is for preventing that condensation water from producing generally attached insulation material 50 in the cavity to further set up structures such as center or connection frame 40 and be used for the wading electric control structure such as fixed mounting power strip, and further keep warm at center or the attached insulation material 50's of connection frame 40 mode, in order to avoid appearing the dewfall. But the mode through attached insulation material can only play the effect that prevents the dewing in the short time, when the air conditioner long-time operation, serious dewing problem still can appear, and the difficult complete elimination of dew condensation water that produces, it easily breeds the bacterium, produces peculiar smell influence user experience to save in the air conditioner, and cause the part ageing easily, influence air conditioner life, owing to long-term use apron isotructure is not hard up even, lead to the dew condensation water to get into to the district that paddles, there is the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims to provide an air duct structure of an air conditioner indoor unit, which has the advantages of simple structure and capability of effectively solving the problem of condensation in the air conditioner indoor unit structure.

An air duct structure of an indoor unit of an air conditioner comprises two air duct assemblies;

the two air duct assemblies are symmetrically designed, and each air duct assembly comprises an air duct frame, a blowing grid and a fan; the air duct frame comprises an air duct wall which is an integrally formed part; the air duct wall and the blowing-out grid are enclosed to form an air duct cavity which extends along the height direction of the indoor unit and is communicated along the front-back direction of the indoor unit, and the fan is rotatably fixed in the air duct cavity;

the air duct wall comprises an air inlet section close to the back of the indoor unit and an air outlet section close to the front of the indoor unit; the air inlet sections of the two air duct walls are detachably spliced and fixed, and the edges of the air outlet sections of the two air duct walls are abutted and form an included angle; and a ventilation channel is arranged between the two air duct walls, one end of the ventilation channel penetrates through the air inlet section and is communicated with the air duct cavity, and the other end of the ventilation channel is communicated with the outside.

According to the air duct structure of the air conditioner indoor unit, the two air duct components are symmetrically designed, the air duct walls which are integrally formed and the blowing-out grids are enclosed to form the air duct cavity, the two air duct walls are detachably fixed, the structure is simple, the dismounting and the mounting are simple and convenient, the assembly is convenient, the production efficiency is improved, and the production cost is reduced; in addition, through the arrangement of the ventilation channel, one end of the ventilation channel is arranged in the air inlet section in a penetrating way and is communicated with the air channel cavity, the other end of the ventilation channel is communicated with the outside, negative pressure is formed near the air inlet section due to the rotation of the fan in the use process, outside hot air can be introduced into the air channel cavity from the outside along the ventilation channel under the action of air pressure difference, the normal refrigeration of an indoor unit of the air conditioner is not influenced by the introduction of a small amount of hot air, but the temperature of the outer side surface of the air channel wall can be increased to be higher than the dew point temperature by the hot air flowing along the ventilation air channel, so that the air channel wall is prevented from being radiated by cold air in the air channel cavity for a long time, the generation of dew condensation water is reduced, the use of heat insulation materials is reduced, the production cost is reduced, and meanwhile, the influence on an electric fitting structure caused by the radiation of cold energy to an electric fitting region is avoided, and even has the problem of potential safety hazard.

Furthermore, the air inlet section comprises a first air inlet section and a second air inlet section which are fixedly connected, and an included angle is formed between the first air inlet section and the second air inlet section; the edge of the second air inlet section is fixedly connected with the arc-shaped section; the ventilation channel comprises a first ventilation channel, a second ventilation channel and a third ventilation channel, wherein the first ventilation channel is arranged on each of the first ventilation through holes of the first air inlet section in a penetrating mode, the second ventilation channel is arranged between the arc sections, and the third ventilation channel is arranged on each of the second ventilation through holes of the air outlet section connecting position in a penetrating mode.

Furthermore, the number of the first ventilation through holes is at least 3, and the first ventilation through holes are uniformly arranged along the height direction of the indoor unit; the number of the second ventilation through holes is at least 2, so that sufficient air pressure difference is formed, and the circulation of air flow in the ventilation channel is ensured.

Further, still include the mounting, the mounting includes first mounting and the second mounting of activity block, first mounting and the second mounting sets up in two between the air duct wall, and respectively with two the first air inlet section fixed connection of air duct wall.

Further, the device also comprises a guide piece; the air duct wall also comprises an arc-shaped section, the cross section of the arc-shaped section is arc-shaped, and two sides of the arc-shaped section are respectively fixedly connected with the air inlet section and the air outlet section; the arc-shaped sections of the two air duct walls are arranged in a back-to-back manner; the guide piece comprises a first guide piece and a second guide piece which are movably clamped, wherein the first guide piece and the second guide piece are arranged between the two air duct walls and are fixedly connected with the arc sections of the two air duct walls respectively. The setting of guide can be two play the effect of direction and location in the installation concatenation in-process of wind channel subassembly, the cooperation the setting up of setting element can reduce the tolerance of installation concatenation in-process, guarantees two the symmetry of wind channel subassembly, and can be right the slight deformation of wind channel structure is corrected.

Furthermore, the first fixing piece and the air duct wall as well as the second fixing piece and the air duct wall are integrally formed parts; the first guide piece and the air duct wall as well as the second guide piece and the air duct wall are integrally formed parts. The integrated into one piece can improve the mechanical strength of structure, increase of service life reduces the equipment process simultaneously, reduction in production cost.

In addition, the embodiment of the utility model also provides an air conditioner indoor unit, which comprises a back plate, a heat exchanger, a connecting frame, an electric installation part, two driving motors and the air duct structure of the air conditioner indoor unit; the cross section of the rear plate is of an arc-shaped structure, and an opening of the arc-shaped structure faces the front face of the indoor unit; two sides of the rear plate are detachably fixed with the blowing grids of the two air duct assemblies respectively; the cross section of the heat exchanger is of an arc-shaped structure, and an opening of the arc-shaped structure faces the front face of the indoor unit; two sides of the heat exchanger are detachably fixed with the blowing grids of the two air duct assemblies respectively, and the surface of the heat exchanger is abutted against the abutting surface; the connecting frame is arranged towards the front of the indoor unit, two sides of the connecting frame are detachably fixed with the edges of the air duct walls of the two air duct assemblies respectively, and the connecting frame and the air outlet sections of the two air duct walls form a through space extending along the height direction of the indoor unit, the through space is communicated with the ventilation channel, and the bottom and the top of the through space are communicated with the outside; the electrical installation part is detachably fixed on one side of the connecting frame facing the front of the indoor unit; the upper end face of the air duct frame is also provided with a motor mounting position, and the driving motor is detachably fixed on the motor mounting position and is in driving connection with the fan.

According to the air conditioner indoor unit provided by the embodiment of the utility model, the air outlet section of the air duct wall and the connecting frame are used for enclosing to form a through space, and through the arrangement of the through space, the temperature difference is generated between a component with the rising temperature and other components subjected to air cold radiation in the air duct cavity when a driving motor and the like work after the whole unit is assembled, so that the air is driven to flow, and the generation of condensation water can be reduced to a certain extent; combine ventilation passageway's setting, and the dew condensation water that produces can certainly link up the space and flow, combine the drainage structures of air conditioner can realize the rapid discharge of dew condensation water, further avoid appearing dew condensation water and save the influence air conditioner and use to cause peculiar smell, part scheduling problem that ages. The air conditioner provided by the embodiment of the utility model has the advantages of simple structure, low production and processing cost, stable performance and long service life.

Furthermore, the air outlet section and one side of the connecting frame facing the through space are both provided with heat insulation materials. The attaching of insulation material can improve the heat preservation effect, further avoids the production of condensation water.

Furthermore, a plurality of water diversion ribs are convexly arranged on the heat insulation material, the water diversion ribs are sequentially arranged along the height direction of the indoor unit, each water diversion rib forms an included angle with the vertical direction, the included angle is not more than 90 degrees, the water diversion ribs can be used for guiding the flow of the condensed water, the condensed water can smoothly and quickly flow downwards and further be discharged, the problems of peculiar smell, component aging and the like caused by long-term attachment of the condensed water are avoided, and the condensed water can be prevented from directly falling from a high place and generating water falling sound to influence use; or, each the diversion muscle is the level setting, and is a plurality of the diversion muscle is followed the direction of height of indoor set evenly sets up in proper order, just the protruding height of diversion muscle increases along with the reduction of the height of locating, the setting more than of diversion muscle can be used for bearing temporarily the dew condensation water that the wind channel structure outside produced controls its position that falls, and avoids it directly to fall and produce the sound of falling water from the eminence, influences the use.

Furthermore, the air duct frame also comprises an upper end surface positioned at the top of the indoor unit and a chassis positioned at the bottom of the indoor unit, wherein the upper end surface is provided with a drainage groove, the bottom of the drainage groove is provided with a drainage port, and the drainage port is communicated with the top of the through space; the drainage groove and the drainage port are arranged to collect dew formed on the upper end surface of the air duct frame and guide the dew to the through space; the chassis is provided with the water collector, the water collector with link up the space bottom and communicate, the setting of water collector is used for collecting the dew that falls in the space that link up, the user of being convenient for clears up.

For a better understanding and practice, the utility model is described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a cross-sectional view of a portion of a dual air duct air conditioner indoor unit in the prior art;

FIG. 2 is a front view of a portion of a dual air duct air conditioner indoor unit in the prior art;

fig. 3 is an exploded view of a portion of a dual duct air conditioner indoor unit according to the prior art;

fig. 4 is a first schematic cross-sectional view of an air duct structure of an indoor unit of an air conditioner according to embodiment 1 of the present invention;

fig. 5 is a cross-sectional schematic view of a duct structure of an indoor unit of an air conditioner according to embodiment 1 of the present invention;

fig. 6 is a schematic view of the overall structure of the air duct structure of the indoor unit of the air conditioner according to embodiment 1 of the present invention;

fig. 7 is a partial schematic view of a duct structure of an indoor unit of an air conditioner according to embodiment 1 of the present invention;

fig. 8 is a first schematic view illustrating an operating principle of an air duct structure of an indoor unit of an air conditioner according to embodiment 1 of the present invention;

fig. 9 is a schematic view illustrating a second working principle of the air duct structure of the indoor unit of the air conditioner according to embodiment 1 of the present invention;

fig. 10 is a schematic cross-sectional view of an indoor unit of an air conditioner according to embodiment 2 of the present invention.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Example 1

Referring to fig. 4-5, fig. 4 is a first cross-sectional view of an air duct structure of an air conditioner indoor unit according to embodiment 1 of the present invention, fig. 5 is a second cross-sectional view of the air duct structure of the air conditioner indoor unit according to embodiment 1 of the present invention, and as shown in the figures, embodiment 1 of the present invention provides an air duct structure of an air conditioner indoor unit, which includes two air duct assemblies.

The two air duct assemblies are symmetrically designed, and each air duct assembly comprises an air duct frame 30, a blowing grid 40 and a fan 10; the air duct frame 30 includes an air duct wall 31, and the air duct wall 31 is an integrally formed part; the air duct wall 31 and the blowing-out grids 40 enclose to form an air duct cavity which extends along the height direction of the indoor unit and is communicated along the front-back direction of the indoor unit, and the fan 10 is rotatably fixed in the air duct cavity;

the air duct wall 31 comprises an air inlet section 311 close to the back of the indoor unit and an air outlet section 312 close to the front of the indoor unit; the air inlet sections 311 of the two air duct walls 31 are detachably spliced and fixed, and the edges of the air outlet sections 312 of the two air duct walls 31 are abutted and form an included angle; a ventilation channel is arranged between the two air duct walls 31, one end of the ventilation channel penetrates through the air inlet section 311 and is communicated with the air duct cavity, and the other end of the ventilation channel is communicated with the outside.

In the air duct structure of the air conditioner indoor unit in the embodiment 1 of the utility model, the two air duct components are symmetrically designed, the air duct walls which are integrally formed and the blowing-out lattices are enclosed to form the air duct cavity, and the two air duct walls are detachably fixed, so that the air duct structure is simple in structure, simple and convenient to assemble, convenient to disassemble and assemble, and beneficial to improving the production efficiency and reducing the production cost; in addition, through the arrangement of the ventilation channel, one end of the ventilation channel is arranged in the air inlet section in a penetrating way and is communicated with the air duct cavity, the other end of the ventilation channel is communicated with the outside, negative pressure is formed near the air inlet section due to the rotation of the fan in the use process, outside hot air can be introduced into the air duct cavity from the outside along the ventilation channel under the action of air pressure difference, the introduction of a small amount of hot air has no obvious influence on the normal refrigeration of an indoor unit of the air conditioner, the temperature of the outer side surface of the air duct wall can be increased to be higher than the dew point temperature by the hot air flowing along the ventilation air duct while the user experience is ensured, the problem that the temperature of the air duct wall is too low due to the radiation of cold air in the air duct cavity for a long time is further avoided, the generation of dew condensation water is effectively reduced, the use of heat insulation materials can be reduced, the production cost is reduced, and the generation of the dew condensation water in the area due to the radiation of cold energy to the electric interference area is avoided, further, the electric fitting structure is affected, and even potential safety hazards exist.

Specifically, the cross-sectional shape of the air inlet section is designed to match with the air duct curve and the fan size, so as to further optimize the air duct and reduce the energy loss, for example, in this embodiment, the cross-sectional shape of the air inlet section 311 is an L-shaped structure, in other embodiments, the cross-sectional shape of the air inlet section may also be other structures, for example, the air inlet sections of the two air duct assemblies may form a boss-shaped structure; the air inlet section 311 comprises a first air inlet section and a second air inlet section which are fixedly connected, and an included angle is formed between the first air inlet section and the second air inlet section; the edge of the second air inlet section is fixedly connected with the arc-shaped section 315; referring to fig. 5 to 7, fig. 5 is a second schematic cross-sectional view of an air duct structure of an air conditioner indoor unit according to embodiment 1 of the present invention, fig. 6 is a schematic view of an overall structure of the air duct structure of the air conditioner indoor unit according to embodiment 1 of the present invention, fig. 7 is a partial schematic view of the air duct structure of the air conditioner indoor unit according to embodiment 1 of the present invention, the ventilation channel includes a first ventilation channel, a second ventilation channel and a third ventilation channel, the first ventilation channel is a first ventilation through hole 313 penetrating through each first air inlet section, the second ventilation channel is located between two arc-shaped sections 315, and the third ventilation channel is a second ventilation through hole 314 penetrating through a joint of two air outlet sections 312.

It is further preferable that the number of the first ventilating holes 313 is at least 3, and the number of the second ventilating holes 314 is at least 2, so as to form a sufficient air pressure difference to ensure the circulation of the air flow in the ventilating passage.

As an optional implementation manner, referring to fig. 4, in this embodiment, the air duct structure of the indoor unit of the air conditioner further includes a fixing member 20, where the fixing member 20 includes a first fixing member and a second fixing member movably engaged with each other, and the first fixing member and the second fixing member are disposed between the two air duct walls 31 and are respectively and fixedly connected to the first air intake sections of the two air duct walls 31. The detachable fixation of the air duct walls 31 of the air duct assemblies is realized by utilizing the movable clamping of the first fixing piece and the second fixing piece, the dismounting operation is simple and convenient, and the production and processing efficiency is improved.

The air duct structure of the indoor unit of the air conditioner further comprises a guide piece 70; the air duct wall 31 further comprises an arc-shaped section 315, the cross section of the arc-shaped section 315 is arc-shaped, and two sides of the arc-shaped section 315 are fixedly connected with the air inlet section 311 and the air outlet section 312 respectively; the arc-shaped sections 315 of the two air duct walls 31 are arranged facing away from each other; the guiding element 70 includes a first guiding element and a second guiding element movably engaged with each other, and the first guiding element and the second guiding element are disposed between the two air duct walls 31 and are respectively fixedly connected with the arc-shaped sections 315 of the two air duct walls 31. The setting of guide 70 can be two play the effect of direction and location in the installation concatenation process of wind channel subassembly, the cooperation the setting up of setting element can reduce the tolerance of installation concatenation in-process, guarantees two the symmetry of wind channel subassembly, and can be right the slight deformation of wind channel structure is corrected.

Further preferably, the first fixing piece and the air duct wall 31, and the second fixing piece and the air duct wall 31 are all integrally formed pieces; the first guide piece and the air duct wall 31, and the second guide piece and the air duct wall 31 are all integrally formed parts. The integrated into one piece can improve the mechanical strength of structure, increase of service life reduces the equipment process simultaneously, reduction in production cost.

When the air duct structure of the indoor unit of the air conditioner in embodiment 1 of the present invention works, the fan 10 rotates in the air duct cavity, and generates negative pressure and pressure difference around the air intake section 311, so that hot air can be introduced from the outside through the ventilation channel, please refer to fig. 8 and 9, fig. 8 is a schematic view of the working principle of the air duct structure of the indoor unit of the air conditioner in embodiment 1 of the present invention, fig. 9 is a schematic view of the working principle of the air duct structure of the indoor unit of the air conditioner in embodiment 1 of the present invention, the flow direction of the hot air introduced from the outside is shown by arrows in fig. 8 and 9, a small amount of hot air is mixed with cold air in the air duct cavity and blown out, which has no obvious influence on the normal refrigeration of the indoor unit of the air conditioner, while ensuring user experience, the hot air flowing along the ventilation air duct can raise the temperature of the outer side surface of the air duct wall 31 to above the dew point temperature, and then avoid the air duct wall causes the problem that the temperature is too low because of receiving for a long time the radiation of cold air in the wind duct chamber, effectively reduces the production of condensation water, can reduce insulation material's use, reduction in production cost, avoids simultaneously because cold volume radiation to the area of wading electricity and then causes this regional condensation water that produces, and then leads to the fact the influence to the structure of the electric installation, has the problem of potential safety hazard even.

Example 2

Referring to fig. 10, fig. 10 is a schematic cross-sectional view of an indoor unit of an air conditioner according to embodiment 2 of the present invention, as shown in the figure. Embodiment 2 of the present invention provides an air conditioner indoor unit, which includes a back plate 1, a heat exchanger 2, a connection frame 3, an electrical component (not shown), two driving motors (not shown), and the air duct structure of the air conditioner indoor unit described in embodiment 1; the cross section of the rear plate 1 is of an arc-shaped structure, and the opening of the arc-shaped structure faces the front face of the indoor unit; two sides of the back plate 1 are detachably fixed with the blowing grids 40 of the two air duct assemblies respectively; the cross section of the heat exchanger 2 is of an arc structure, and the opening of the arc structure faces the front face of the indoor unit; two sides of the heat exchanger 2 are detachably fixed with the blowing grids 40 of the two air duct assemblies respectively, and the surface of the heat exchanger 2 is abutted against the abutting surface; the connecting frame 3 is arranged towards the front of the indoor unit, two sides of the connecting frame are detachably fixed with the edges of the air duct walls 31 of the two air duct assemblies respectively, and the connecting frame and the air outlet sections 312 of the two air duct walls 31 enclose to form a through space extending along the height direction of the indoor unit, the through space is communicated with the ventilation channel, and the bottom and the top of the through space are communicated with the outside; the electrical part is detachably fixed on one side of the connecting frame 3 facing the front of the indoor unit; the upper end face of the air duct frame 30 is further provided with a motor mounting position, and the driving motor is detachably fixed to the motor mounting position and is in driving connection with the fan 10.

In the air conditioner indoor unit according to embodiment 1 of the present invention, the air outlet section 312 of the air duct wall 31 and the connecting frame 3 are used to enclose and form a through space, and by the arrangement of the through space, a component such as a driving motor and the like which rises in temperature when working generates a temperature difference with other components which are subjected to air cooling radiation in the air duct cavity after the whole unit is assembled, so as to drive air to flow, and reduce the generation of dew to a certain extent; combine ventilation passageway's setting, and then reduce through introducing external hot-air the production of dew in the air conditioner indoor set, and the dew that produces can certainly link up the space and flow, further combine the drainage structures of air conditioner can realize the rapid discharge of dew, effectively avoid appearing the dew and save the influence air conditioner and use to cause peculiar smell, part scheduling problem that ages. The air conditioner indoor unit provided by the embodiment of the utility model has the advantages of simple structure, low production and processing cost, stable performance and long service life.

As an optional implementation manner, in the present embodiment, the heat insulating material 50 is disposed on both the air outlet section 312 and the side of the connecting frame 3 facing the through space. The attachment of the thermal insulation material 50 can improve the thermal insulation effect, and further avoid the generation of dew.

Further preferably, the heat insulating material 50 is provided with a plurality of water diversion ribs 60 in a protruding manner, as an optional implementation manner, in this embodiment, the plurality of water diversion ribs 60 are sequentially arranged along the height direction of the indoor unit, each water diversion rib 60 forms an included angle with the vertical direction, the included angle is not greater than 90 degrees, the arrangement of the water diversion ribs 60 can be used for guiding the flow of the condensed water, the condensed water can smoothly and quickly flow downwards and be further discharged, the problems of peculiar smell, component aging and the like caused by long-term attachment of the condensed water are avoided, and the condensed water can be prevented from directly falling from a high place and generating water falling sound to influence use; in other embodiments, each diversion rib 60 can be horizontally arranged, a plurality of diversion ribs 60 are sequentially and uniformly arranged along the height direction of the indoor unit, the height of the protrusion of each diversion rib 60 is increased along with the reduction of the height of the corresponding diversion rib, the above arrangement of each diversion rib 60 can be used for temporarily bearing the dew generated outside the air channel structure, the falling position of the dew is controlled, and the dew is prevented from directly falling from a high place and generating a water falling sound to influence the use.

As an optional implementation manner, the duct frame 30 further includes an upper end surface located at the top of the indoor unit and a chassis located at the bottom of the indoor unit, the upper end surface is provided with a drainage groove (not shown), the bottom of the drainage groove is provided with a drainage port, and the drainage port is communicated with the top of the through space; the drainage grooves and the drainage ports are arranged to collect dew formed on the upper end surface of the air duct frame 30 and to lead the dew to the through space; the base plate is provided with a water receiving disc (not shown), the water receiving disc is communicated with the bottom of the through space, and the water receiving disc is used for collecting dew falling from the through space, so that a user can clean the dew conveniently.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. An air duct structure of an indoor unit of an air conditioner is characterized in that: comprises two air duct components;

2. The air duct structure of an indoor unit of an air conditioner according to claim 1, wherein: the air inlet section comprises a first air inlet section and a second air inlet section which are fixedly connected, and an included angle is formed between the first air inlet section and the second air inlet section; the ventilation channel comprises a first ventilation channel, a second ventilation channel and a third ventilation channel, the first ventilation channel is arranged on each of the first ventilation through holes of the first air inlet section in a penetrating mode, and the third ventilation channel is arranged on two of the second ventilation through holes of the connection position of the air outlet sections in a penetrating mode.

3. The air duct structure of an indoor unit of an air conditioner according to claim 2, wherein: the number of the first ventilation through holes is at least 3, and the first ventilation through holes are uniformly arranged along the height direction of the indoor unit.

4. The air duct structure of an indoor unit of an air conditioner according to claim 2, wherein: the device also comprises a fixing piece; the fixing pieces comprise a first fixing piece and a second fixing piece which are movably clamped, and the first fixing piece and the second fixing piece are arranged between the two air duct walls and are respectively and fixedly connected with the first air inlet sections of the two air duct walls; the second fixing piece is positioned on one side, facing the front face of the indoor unit, of the first fixing piece, and the abutting face is the surface of one side, facing the back face of the indoor unit, of the first fixing piece.

5. The air duct structure of an indoor unit of an air conditioner according to claim 4, wherein: the device also comprises a guide piece; the air duct wall also comprises an arc-shaped section, the cross section of the arc-shaped section is arc-shaped, and two sides of the arc-shaped section are respectively fixedly connected with the air inlet section and the air outlet section; the arc-shaped sections of the two air duct walls are arranged in a back-to-back manner; the guide piece comprises a first guide piece and a second guide piece which are movably clamped, wherein the first guide piece and the second guide piece are arranged between the two air duct walls and are fixedly connected with the arc sections of the two air duct walls respectively.

6. The air duct structure of an indoor unit of an air conditioner according to claim 5, wherein: the first fixing piece and the air duct wall as well as the second fixing piece and the air duct wall are integrally formed parts; the first guide piece and the air duct wall as well as the second guide piece and the air duct wall are integrally formed parts.

7. An indoor unit of an air conditioner, characterized in that: comprises a back plate, a heat exchanger, a connecting frame, an electric installation part, two driving motors and the air conditioner indoor unit air duct structure of any one of claims 4 to 6; the cross section of the rear plate is of an arc-shaped structure, and an opening of the arc-shaped structure faces the front face of the indoor unit; two sides of the rear plate are detachably fixed with the blowing grids of the two air duct assemblies respectively; the cross section of the heat exchanger is of an arc-shaped structure, and an opening of the arc-shaped structure faces the front face of the indoor unit; two sides of the heat exchanger are detachably fixed with the blowing grids of the two air duct assemblies respectively, and the surface of the heat exchanger is abutted against the abutting surface; the connecting frame is arranged towards the front of the indoor unit, two sides of the connecting frame are detachably fixed with the edges of the air duct walls of the two air duct assemblies respectively, and the connecting frame and the air outlet sections of the two air duct walls form a through space extending along the height direction of the indoor unit, the through space is communicated with the ventilation channel, and the bottom and the top of the through space are communicated with the outside; the electrical installation part is detachably fixed on one side of the connecting frame facing the front of the indoor unit; the upper end face of the air duct frame is also provided with a motor mounting position, and the driving motor is detachably fixed on the motor mounting position and is in driving connection with the fan.

8. An indoor unit for an air conditioner according to claim 7, wherein: the air outlet section and the connecting frame face towards one side of the through space are both provided with heat insulation materials.

9. An indoor unit for an air conditioner according to claim 8, wherein: a plurality of water diversion ribs are arranged on the heat insulation material in a protruding mode, the water diversion ribs are sequentially arranged along the height direction of the indoor unit, an included angle is formed between each water diversion rib and the vertical direction, and the included angle is not larger than 90 degrees; or each diversion rib is horizontally arranged, a plurality of diversion ribs are sequentially and uniformly arranged along the height direction of the indoor unit, and the height of the bulge of each diversion rib is increased along with the reduction of the height of the corresponding diversion rib.

10. An indoor unit for an air conditioner according to claim 7, wherein: the air duct frame also comprises an upper end surface positioned at the top of the indoor unit and a chassis positioned at the bottom of the indoor unit, the upper end surface is provided with a drainage groove, the bottom of the drainage groove is provided with a drainage port, and the drainage port is communicated with the top of the through space; the chassis is provided with a water pan, and the water pan is communicated with the bottom of the through space.